Pumping-derrick reenforcing



T. A. L. BOWEN PUMPING DERRICK RE'ENFORCING Jan. 24, 1928.. 1,656,900

Filed March 27, 1926 2 Sheets-Sheet l /f grunt" T01 Tro yfl Z B W6 77/QWW Jan. 24, 1928. 1,656,900

T. A. L. BOWEN PUMPING DERRICK REENFORCING Filed March 27, 1926 2Sheets-Sheet 2 a Jrwento'c' 35 extending parallel right angularlydisposed Patented Jan. 24, 1928.

UNITED stares TROY ALMOND LEONARD BOWEN, O35 TULSA, OKLAHOMA.

PUMPING-DERRICK REENFORCING.

Application filed March 2?, 1926.- Serial No. 9?,8952

The invention relates to reentorcing means for a pumping derrick of thetype used in connection with oil wells, and has for its object toprovide a reeniorcing means com prising angle irons disposed within theangle irons of the pumping derrick and clamped thereto and a header orplatform carried by the upper end of the reen'forcing angle irons andclan'iping means for clamping the recnforcii'ig angle irons to the angleirons of the pumping derrick. The rcenforcing means reeniorces thepumping derrick so that the same will sutficiently strong to stand thestrain. incident to pulling rods and tubing, which is not possible withconventional forms of pumping derricks. It will also be seen byreentorcing the light pumpingderrick it can be used when reeniforced fordrilling wells, and when the well is drilled the reenforcement can betaken out and the pumping derrick left.

A further object is to provide the outer faces of the reenforcing anglebars with spacers {which will space said reenforeed bars from the innerfaces of the angle bars of the pumping derrick a distance equal to thethickness of the nuts and washer, securing the pumping derrick partstogether, thereby maintaining the reenforcing bars in parallel relationto the pumping derrickbarsl A further object is to, provide oppositelydisposed right angular-1y shaped clamping plates engaging the outersides of the pumping derrick angle bars and the inner sides of thereentorcing angle bars and outwardly ears carried by said platestlirough which clamping bolts extend.

With the above and other objects in view the invention resides in thecombination and arrangement of parts as hereinafter set forth, shown inthe drawing, described and claimed, it being understood that changes inthe precise embodiment of the invention may be made within the scope ofwhat is claimed without departing from the spirit of the invention.

In the drawing r Figure 1 is a side elevation of a conventional form ofpumping derrick, showing the reenforcement applied thereto.

Figure 2 is a top plan view of the reenl'orcement platform.

Figure 3 is a detail perspective view of a portion of one of thesupporting legs of the derrick and a portion of one of the reenforcingangle bars. .a

Figure 4L is a horizontal sectional view taken on line i4l of Figure 3.Figure 5 is a horizontal sectional view taken on line 5--5 of-Figure 1.

Figure 6 is a perspective view of one of the reenforcing bars.

Referring to the drawings, the numeral l desi nates the steel )uminoderrick which derrick is of a conventional construction and comprisesupwardly extending cornerlegs 2 formed from angle bars the upper ends ofwhich are connected together by plates 3 which are stiiiened at theirupper edges by means of angle bars i. The pumping derrick is "furtherbraced by means of tie bars 5, which are crossed and have their endsanchored to the bottoms of the legs 2, and the legs are prevented fromspreading by means of reenforcing angle bars 6. It has been found thatpumping derricks are too lightly constructed to allow the same to beused for pulling well casings, tubing and rods and the usual practice isto remove the pumping derrick and place a heavier derrick for thispurpose which is an expensive operation, and the present inventionisdesigned to reeniorce the pumping derrick so that it can be used forpulling tubing and for other purposes which would require a-structurehaving Y more strength and rigidity than the pumping derrick. Toaccomplish this result reentorcing angle bars 7 are provided within theangle bars 2 in spaced relation thereto and also parallel thereto. Theouter faces of the flanges of the angle bars 7 are preferably providedwith spacing plates 8 which maintain the angle bars 2 and 7 in spacedrelation, thereby allowing space for the nuts and washers 9, whichproject inwardly from the inner sides of the flanges 2 of the angle bars2.

The angle bars 2 and 7 are securely clamped together by means of rightangular- 1y shaped plates 10 and 11. The plates 10 engage the outersides of the angle bars 2 and terminate in outwardly extending flanges12, which extend outwardly at a right angle to the flanges 2 of theangle bars 2 and extending through the flanges 12 and in parallelrelation to the flanges 2 of the angle bars 2 are bolts 13, which boltser:- tend through apertures 14 in outwardly ex tending flanges 15 of theangle plates 11.

Flanges 15 are in parallel relation to the flanges 12 and it will beseen when the nuts 16 are tightened on the bolts'13, the angle plates 10and 11 will be forced together and said plates will securely clamp theangle bars 2 and 7 together, thereby causing the angle bars 7 to rigidlybrace the pumping derrick angle bars2 and materially increase thestrength thereof, thereby allowing the derrick to be used for otherpurposes where a greater strength is required, for instance to pull rodsand tubing. Apertures 14 are preferably provided with enlarged portions17, through which the nuts 16 will pass after the nuts have beenloosened, and at which time the plates 10 can be moved upwardly slightlyuntil the nuts 16 are in a position where they will pass through theapertures 17.

The upper ends of the bars 7 are connected together by means of angleirons 18, to which are secured channels 19, and which channels and anglebars form a platform to which 'various gears may be attached and at thesame time rigidly brace the upper ends of the angle bars 7, therebyadditional-- ly preventing inwardly movement of the angle bars 7. It isto be understood that the spacing plates 8 may be positioned whereverdesired and secured to the bars 7 in any suitable manner, as theposition of the plates would vary according to the position of thevarious securing nuts for the pumping derrick structure.

From the above it will be seen that a reenforcing means is provided fora pumping derrick which is simple in construction, the parts reduced toa minimum, may be easily and uickly applied to a derriekand removtherefrom without varying the construction of the pumping derrick, andthe reenforcing means will materially incream the strength and rigidityof the structure, thereby allowing the same to be used for purposesfor'which it is not primarily designed.

The invention having been set forth what is claimed as new and usefulis 1. The combination with a derrick supporting leg formed from angleiron, of a reenforcing angle iron disposed within the leg, the flangesof said angle irons being in parallel relation of right angularly shapedclamping plates, one of said plates engaging the inner side of thereen'forcing angel iron, the other angle plate engaging the outer sideof the leg angle iron, the registering arms of said plates being inparallel relation, the ends of said plates terminating in rightangularly disposed flanges in parallel relation to the adjacent plates,and securing bolts extending through said right angular-1y disposedflanges.

E2. The combination with a derrick sup porting leg formed from angleiron, a reenforcing angle iron disposed in the derrick leg, spacingmeans between said angle irons,

of right angularly shaped plates having their registering arms inparallel relation, one of said plates engaging the inner side of thereent'orcing angle iron, the other plate engaging the outer side of theleg, outwardly extending flanges carried by said plates and boltsextending through said flanges at a right angle thereto and in parallelrelation to the flanges of the leg and reenforcing angle iron.

'In testimony whereof I hereunto aifix my signature.

TROY A; L. BOWEN.

